SJ-1B

Query


1.2 GHz Variable Attenuators produce flat (even) loss across Cable TV forward and reverse frequency band. The attenuators are used during amplifier balancing to adjust amplifier signal levels as needed. The variable loss produced (dB) is between 0 dB to 10 dB or 0 dB to 20 dB. The attenuators are rated for operation up to 1.2 GHz. Within specific amplifier types, the attenuators are also used as equalizers. 





技术指标

Item

Units

Value

Attenuation Values

dB

0-10

0-20

Frequency

MHz

0 - 1200

Insertion Loss at 5 MHz

dB

1.0

Return Loss

dB

21.0 @ 0 - 204 MHz

15.0 @ 205 - 750 MHz

12.0 @ 751 - 860 MHz

11.0 @ 861 - 1200 MHz

Impedance

75

Knob Clock

 

Red, Blue

Box

 

Blue, Black

Cover

 

Transparence, Yellow

Note: Unless otherwise noted, all specifications reflect typical performance and are referenced to 68°F (20°C). Specifications are based upon measurements made in accordance with SCTE/ANSI standards (where applicable), using standard frequency assignments. 


Dimensions

                       


Shaft Size

Shaft diameter Ф (mm)

Shaft length L (mm)

6

5, 8




Ordering information

The Variable Attenuators are available in a wide variety of attenuator value and length. Please consult with us to determine the best choose for your application.


SJ-1B-10 dB: 1200 MHz, 10 dB, blue box, red knob, 8 mm knob, transparence cover.

SJ-1B-20 dB: 1200 MHz, 20 dB, blue box, red knob, 8 mm knob, transparence cover.

When you want different type you must add label.

Example:

SJ-1B-10 dB: 1200 MHz, 10 dB, blue box, blue knob, 5 mm knob, transparence cover


About Us

Shanghai Qianjin Electronic equipment Co., LTD was founded in 1991. It is a scale and specialized CATV equipment manufacturer with research, development and production. Our company, strict compliance with international standards and pass GB / T 9001 quality management system certification.

Our good reputation and perfect product service system has won praise from customers. Products are sold to Europe, America, Asia and other countries and regions, as OEM / ODM supplier.



Contact

   Address: 4/F,Budliding No.2,401 Caobao Road Shanghai China

   Phone: 021-54973555

   Email: eddy@sq-cabledevice.com